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EVM6678 IBL 启动不了



板子之前一直是tftp启动的,后来发现上电后用tftp64加载不了程序了,观察串口输出发现没有输出,正常启动的话是会有IBL的打印信息的,之后偶然发现可以恢复出厂设置,于是就按照program_evm_userguide上讲的进行操作,感觉是成功了,输出如下

然后进行Verifying POST和Verifying NOR 但是串口输出只有乱码,如下

这和文档里的输出不一样,文档里打印的是IBL的启动信息,所以很迷,不知道为什么,现在用tftp也加载不了程序